more typing, less any

Author: phmatray

src/blockchain/block.test.ts

@@ -1,12 +1,13 @@
 import Block from './block';
+import Transaction from '../wallet/transaction';
 
 describe('Block', () => {
-  let data: string;
+  let data: Transaction[];
   let lastBlock: Block;
   let block: Block;
 
   beforeEach(() => {
-    data = 'bar';
+    data = [];
     lastBlock = Block.genesis();
     block = Block.mineBlock(lastBlock, data);
   });

src/blockchain/block.ts

@@ -42,7 +42,7 @@ export default class Block {
     // return new this('Genesis time', '-----', 'f1r57-h45h', [], 0, DIFFICULTY);
   }
 
-  public static mineBlock(lastBlock: Block, data: any): Block {
+  public static mineBlock(lastBlock: Block, data: Transaction[]): Block {
     let hash;
     let timestamp;
     const lastHash = lastBlock.hash;
@@ -59,7 +59,13 @@ export default class Block {
     return new this(timestamp, lastHash, hash, data, nonce, difficulty);
   }
 
-  public static hash(timestamp: number, lastHash: string, data: any, nonce: number, difficulty: number): string {
+  public static hash(
+    timestamp: number,
+    lastHash: string,
+    data: Transaction[],
+    nonce: number,
+    difficulty: number,
+  ): string {
     return ChainUtil.hash(`${timestamp}${lastHash}${data}${nonce}${difficulty}`).toString();
   }
 

src/chain-util.ts

@@ -13,7 +13,7 @@ export default class ChainUtil {
     return uuidV1();
   }
 
-  public static hash(data: any): string {
+  public static hash<T>(data: T): string {
     return SHA256(JSON.stringify(data)).toString();
   }
 

src/wallet/index.ts

@@ -26,7 +26,7 @@ export default class Wallet {
       balance  : ${this.balance}`;
   }
 
-  public sign(dataHash: any): ec.Signature {
+  public sign(dataHash: string): ec.Signature {
     return this.keyPair.sign(dataHash);
   }